<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../../js/vue.js"></script>
</head>

<body>
    <div id="root">
        <h1>人员列表</h1>
        <ul>
            <button @click="updateDi">点我更新迪丽热巴</button>
            <li v-for="value in persons" :key="value.id">
                {{value.name}}-{{value.age}}-{{value.sex}}
            </li>
        </ul>
    </div>
    <script>
        Vue.config.productionTip = false //取消生产提示

        const vm = new Vue({
            el: '#root',
            data() {
                return {
                    persons: [{
                            id: '001',
                            name: '迪丽热巴',
                            age: 18,
                            sex: '女'
                        },
                        {
                            id: '002',
                            name: '周冬雨',
                            age: 18,
                            sex: '女'
                        },
                        {
                            id: '003',
                            name: '周杰伦',
                            age: 20,
                            sex: '男'
                        },
                        {
                            id: '004',
                            name: '温兆伦',
                            age: 15,
                            sex: '男'
                        },
                    ],
                }
            },
            methods: {
                updateDi() {
                    // this.persons[0].name = '江疏影' //奏效
                    // this.persons[0].age = 17 //奏效
                    // this.persons[0].sex = '女' //奏效

                    // this.persons[0] = {
                    //     name: '江疏影',
                    //     age: 17,
                    //     sex: '女'
                    // } //不奏效

                    this.persons.splice(0, 1, {
                        name: '江疏影',
                        age: 17,
                        sex: '女'
                    })
                }
            },
        })
    </script>
</body>

</html>